This is an interesting "What if", presenting the HULK/Bruce Banner as the last living person on Earth. An elderly Banner walks across the barren, radioactive wasteland, followed by a robot "eye" which is recording "the demise of humanity". A lot of alien races want to make sure ALL the humans are dead.

Banner wants to die but he can't, as he's immune to the radioactivity. And although he can't eat the Hulk can--and the green goliath can ingest anything and digest it. Their only "enemy" are these ferocious swarms of cockroaches which basically feed off the Hulk as they literally tear him apart with every attack. But the Hulk regenerates....and it all starts over again.

This is an interesting, albeit depressing, tale of the last days of The Hulk.